Top 9 Stop Leak Radiator – Fuel Leak Detectors

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1. Bar's Leaks

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16.9 oz , Gray, Bar's Leaks 1186 Liquid Aluminum Stop Leak

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Bar's Leaks #ad - Seals freeze plug leaks. Repairs gasket leaks. Seals radiator leaks. Bar's leaks liquid aluminum stop leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature. Special shipping information: This item cannot be returned and has additional shipping restrictions.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height7.4 Inches
Length2.6 Inches
Weight1.2 Pounds
Width2.6 Inches
Part Number1186
Model1186
Warranty1 year manufacturer

2. Alumaseal

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20 g, AlumAseal ASBPI12 Radiator Stop Leak Powder Blister Card

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Alumaseal #ad - Stop leak tube treats cooling systems up to 22 quarts 21 liters. Will not clog cooling systems. Compatible with all antifreeze and coolants. Stops leaks safely, quickly and easily. Safe and effective for all metal, plastic and rubber cooling system parts.
BrandAlumaseal #ad
ManufacturerGold Eagle Co. #ad
Height3 Inches
Length5 Inches
Weight0.04 Pounds
Width1 Inches
Part NumberASBPI12
ModelASBPI12
WarrantyLimited Waranty

3. Bar's Leaks

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11 oz., Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak

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Bar's Leaks #ad - Lubricates water pump seals. Conditions cooling system. Helps control electrolysis. Inhibits rust and corrosion. Seals leaks.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height6 Inches
Length3 Inches
Weight0.8 Pounds
Width3 Inches
Part NumberPLT11
ModelPLT11
WarrantySee manufacturer

4. K-Seal

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K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair, Blue

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K-Seal #ad - No draining or flushing. Fixes cracks and leaks in radiator, freeze plugs, heater core, cylinder heads, head gasket, water pump casing and engine blocks. If product did not seal head gasket leak, which causes back pressure and doesn't allow the product to reach the problem area, the system might be Over-pressurized, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully. Permanent coolant leak repair - Just shake, pour and go. Mixes with all antifreeze.
BrandK-Seal #ad
ManufacturerK-Seal #ad
Height6 Inches
Length7.87 Inches
Weight0.6 Pounds
Width2 Inches
Part NumberST5501
ModelST5501
WarrantyWhen K-Seal makes a repair we guarantee it will be permanent

5. Bar's Leaks

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11 oz. , Grey, Bar's Leaks 1196 Radiator Stop Leak

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Bar's Leaks #ad - One bottle treats up to 4 gallons. Works with all types and colors of anti-freeze coolant. Works with all types and colors of anti-freeze coolant. Stops and seals coolant leaks. Stops and seals coolant leaks. One bottle treats up to 4 gallons.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height5 Inches
Length1.6 Inches
Weight0.5 Pounds
Width2.4 Inches
Part Number1196
Model1196
WarrantyNo

6. KALIMEX LTD

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K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair

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KALIMEX LTD #ad - A permanent repair, guaranteed for the lifetime of the engine. If product did not seal head gasket leak, which causes back pressure and doesn't allow the product to reach the problem area, the system might be Over-pressurized, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.

Fixes blown head gaskets, cracked heads and blocks. Scientifically tested - k-seal is the only product to have been successfully tested by the equipment at Brighton University and classes as meeting the demands of ASTM D3147. Just pour & go – no need for expensive head Gasket Repairs - The Safe and Easy Way to Fix a Coolant Leak.
BrandKALIMEX LTD #ad
ManufacturerSolv-TecA #ad
Height8 Inches
Length2.5 Inches
Weight1 Pounds
Width2.5 Inches
Part NumberKSLST3501
ModelKSLST3501
WarrantyLifetime warranty does not cover abuse

7. Bar's Leaks

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6 oz., Bar's Leaks 1194 Radiator Stop Leak Concentrate

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Bar's Leaks #ad - Country of origin :United States. Package weight :081lbs. Package dimensions :4. 064 cm l x6. 096 cm w x12. 446 cm H. Product type :auto ACCESSORY.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height6.5 Inches
Length1.8 Inches
Weight0.42 Pounds
Width3 Inches
Part Number1194
Model1194
WarrantyNo

8. Bar's Leaks

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Bar's Leaks HDC Radiator Stop Leak Tablet, 60 Grams

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Bar's Leaks #ad - Helps control electrolysis. Conditions cooling system. Inhibits rust and corrosion. Seals leaks. Lubricates water pump seals.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height0.8 Inches
Length7.5 Inches
Weight0.2 Pounds
Width5 Inches
Part NumberHDC
ModelHDC
WarrantyManufacturer Warranty

9. Bar's Leaks

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18 oz., Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak

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Bar's Leaks #ad - Seals larger leaks seals. Repairs freeze plug leaks. Repairs heater core leaks. Repairs blown head gaskets. Repairs blocks.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height2.6 Inches
Length7.5 Inches
Weight1.3 Pounds
Width2.6 Inches
Part Number1109
Model1109